Open your Lessonspace as you would normally.
Step 1: Ensure that you have turned 'Leader Mode' OFF.
This will grant permission for your student to navigate the space.
Step 2: Once the student is screensharing, you need to 'double click' the box with the screenshare. This will fill the screen/space.
Step 3: Once the screen share is full screen, you have the functionalities of some of the drawing tools to annotate over the student's screen.
Note: Annotations will only be held whilst the student is screensharing. However, all annotations will be captured in the session recording and viewable after the sessions.